If someone is keen on practicing French, but has found the French speakers they've met on the continent to be a tad rude and unhelpful (I know I have in Normandy, Calais and Lyon) then can I suggest the east coast of Corsica?
I found everyone there extremely friendly, and very helpful with my pronounciation of french
The island itself is beautiful, with long sandy beaches which aren't overcrowded.
The west coast is mainly m'kee (star trek fans will be able to spell it properly) and really quite hot, but the east is alot greener, with some beautiful mountain streams you can go swimming in.
Just one word of warning, the italian campervan drivers tend to not know any speed other than 80, and don't overtake unless they can see the whites of the eyes of the oncoming driver, or unless there's a bend or humpback bridge!